| Product No. | Product name | specifications | 
| 1.01864.010 | Potassium thiosulfate hydrate | CP500g | 
| 1.01864.020 | Potassium thiosulfate hydrate | AR500g | 
| Item | AR | CP | 
| Assay[K2S2O3·1/3H2O] | ≥98.5% | ≥98.0% | 
| Clarity of solution | Pass | Pass | 
| Insoluble matter | ≤0.01% | ≤0.015% | 
| Sulfate and sulfite(as SO4) | ≤0.2% | ≤0.3% | 
| Sulfide(S) | ≤0.002% | ≤0.004% | 
| Calcium(Ca) | ≤0.01% | ≤0.01% | 




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